Combined cotton gin and cleaner.



W. B. TUBMAN.

COMBINED COTTON GIN AND CLEANER. APPLICATION mum NOV. 3, 1009.

Patented Sept. 13,1910.

% a snnmsannnw 1. I r I W. B. TUBMAN.

COMBINED COTTON GIN AND CLEANER, APPLIUA'I'ION 111.121) NOV. 3, 1909.

969, 924, Patented Sept. 13, 1910.

UNITED STATES PATENT OFFICE.

WILLIAM B. TUBMAN, OF WALDRON, ARKANSAS.

COMBINED COTTON GIN AND CLEANER.

To all whom it may concern:

Be it known that 1, WILLIAM B. Trnnuan, a citizen of the United States,residing at WValdron, in the county of Scott and State of Arkansas, haveinvented a new and useful Combined Cotton Gin and Cleaner, of which thefollowing is a specification.

This invention has relation to combined cotton gins and cleaners and itconsists in the novel construction and arrangement of its parts ashereinafter shown and described.

The object of the invention is to provide a combination apparatus asindicated which is adapted to separate the lint from the seed by thecombined action of a series of dotfer bars acting at one side of aforaminous concave and a series of lint confining bars operating uponthe exterior of the said concave. These parts are so arranged that whenthe lint is drawn through the openings in the concave it is engaged bythe bars moving along the exterior of the concave and is held againstthe concave.

The doifer bars follow just behind the bars last mentioned and come incontact with the seeds and tear the seeds from the lint or vice versa.The lint thus separated from the seed is carried by a suction draft to acondenser and the delinted seed remains in the concave and by gravityfalls through an outlet.

The ginning mechanism and the condenser are arranged in a case as isalso an air suction device. A dust trap is ar 'anged in the badger casebetween the ginning machanism and the condenser.

In the accompanying drawings: Figure 1 is a side elevation of thecombined cotton gin and cleaner with one side of the case removed. Fig.2 is a transverse sectional view of the same cut on the line 22 ofFig. 1. Fig. 3 is a transverse sectional view of the same cut on theline 3-3 of Fig. 1. Fig. 4 is a transverse sectional view of the samecut on the line 44 of Fig. 1. Fig. 5 is a side elevation of theinvention illustrating how some of the movable parts are belted. Fig. 6is a side elevation opposite to that shown in Fig. 5 showing how othermovable parts of the apparatus are belted. Fig. 7 is a detail viewshowing the manner in which the lint confining bars which operateagainst the exterior of the ginning concave are mounted.

The combined cotton gin and cleaner includes a frame 1 within the sideportions Specification of Letters Patent. Patented Sept. 13, 1910.

Application filed November 3, 1909.

Serial No. 526,085.

of which is located a case 2. The said case 2 is provided at one endwith a feed inlet 3 and at its other end with a bat outlet 4- and in itsupper portion with a dome 5. An apron head 6 is hingedly mounted at oneend of the casing 2 and partially closes the feed opening 3 therein.Said apron is of usual structure and is provided with teeth 7. Anexhaust fan 8 is located in the dome 5 and communicates with the dustfine 9.

A foraininous concave 10 is located in the casing 2 below the inletopening 3 and a drum 11 is journaled for rotation in the said concave10. The drum or cylinder 11 is provided at its periphery with a seriesof dofl'er bars 12 which extend parallel with the axis of the saidcylinder. The said cylinder is made up merely of a shaft with headslocated thereon and which are connected together by the said bars 12.The bars 12 are spaced one from the other throughout the series. A.partition 13 is located in the easing 2 behind the concave 1t) and theupper end of the said partition is spaced from the top of the saidcasing 2. A trash well 11 is formed behind the partition 13 and betweenthe said partition and a partition 15 also located in the casing 2. Therear side of the concave 10 is spaced from the forward surface of thepartition 13 and in the space thus provided is located a lint confiningdevice which consists of an upper shaft 16 journaled in the casing 2 andhaving fixed sprocket wheels 17. A shaft 18 is located in the lowerportion of the casing 2 and sprocket wheels 19 are arranged to rotateabout the axis of the shaft 18. Idle sprocket pulleys 20 are journaledwithin the casing 2 and sprocket chains 21 are arranged to move inorbits around the wheels 17 and 19 and the rear runs of the said chainscome in contact with the peripheries of the pulleys 20. lransverselydisposed roller bars 22 are connected at their ends with the chains 21and the said bars 22 are spaced one from the other at regular intervals.The bars 22 are so positioned upon the chains 21 that they t 'avel inadvance of the edges of the dotfer bars 12 upon the cylinder 11 and thenumber of bars 22 correspond with the number of bars 12 and a bar 22 isarranged to cooperate with a bar 12 in denuding the cotton seed of itslint in a manner hereinafter to be explained. The case 2 is provided inits bottom with a trash outlet 23 which is located at the bottom of thetrash well 14. A roller valve 24 is journaled for rotation in the bottomof the well 14 and is provided in its periphery with a cavity 25 whichis adapted to receive trash and after said cavity moves directly overthe outlet 23 the said trash may fall therefrom through the outlet 23and thus the refuse is removed from the well 14 without permitting anair draft to pass up through the said well.

A condenser cylinder 26 is journaled for rotation in the casing 2 behindthe partition 15 and the periphery of the said cylinder is preferablyformed of wire netting 27 in the usual manner. Aflexible flap valve 27bears upon the upper portion of the cylinder 26 and a flexible flapvalve 28 bears against the rear portion of the said cylinder. A flexibleflap valve 29 bears against the lower portion of the cylinder 26 and batforming rolls 30 are journaled for rotation in the lower rear portion ofthe casing 2 and the said rolls are located between the flap valves 28and 29. Behind the bat forming rolls 30 is located the outlet 4 in thecasing 2 above mentioned. As hereinbefore stated, Fig. 5 is a sideelevation of one side of the machine showing how some of the movingparts are belted. The shaft of the cylinder 11 serves as the mastershaft of the apparatus and the belt 31 is adapted to transmit movementfrom the said shaft to the shaft 16 and its connections, the condenser26, the

' bat forming rolls 30 and the trash valve 24 in the manner asillustrated in Fig. 5 of the drawing. The belt 32 located at theopposite side of the casing 2 and illustrated in Fig. 6 is adapted totransmit motion from the master shaft of the cylinder 11 to the shaft ofthe fan 8. Thus it will be seen that the parts are so belted that thecylinder 11 rotates in the opposite direction from the shaft 16 androtates in the same direction as the condenser cylinder 26. The batforming rolls 30 of course rotate toward each other.

The operation of the combined gin and cleaner is as follows: The partsbeing in motion as indicated, seed cotton is fed through the opening 3into the case against the inner side of the apron head 6. By reason ofthe fact that the said apron head is hingedly connected with the casing2, the said head will force the seed cotton toward the periphery of thedofler cylinder and into the spaces between the bars 12 thereof and thesaid seed cotton will enter the space within the concave 10. At the sametime suction draft is created through the casing 2 and the lint upon theseeds is drawn through the openings of the concave 10. As the bars 22move along the exterior of the concave 10 they engage the projectinglint and draw the seeds down tight against the lnterior surface of thesaid concave 10. The

dofler bars 12 following behind the confin ing bars 22 engage the seedand tear the seed from the lint. The seed remains in the concave 10while the lint thus removed from the seed is caught by the suction draftand carried over the upper edge of the partition 13 and down toward theperiphery of the condenser 26. Any heavy particles of foreign matterthat might pass over the upper edge of the partitions with the lint willfall into the trash well 14 where it is collected and eventually passedout through the outlet 23 by the cylinder Valve 24. Any finer particlesof foreign matter which may follow the lint to the periphery of thecondenser 26 will pass through the mesh of the screen forming thecylindrical portion of said condenser and will pass through the spacebetween the flap valves 27 and 28 and up out through the casing of thefan 8 into the discharge flue 9. The lint which accumulates upon theperiphery of the condenser 26 is carried around and is caught up by thebat forming rolls 30 and is passed out of the casing 2 through thedischarge outlet 4. The seed admitted into the concave 10 remainstherein until it is entirely denuded then falls by gravity through anoutlet 31. Thus it will be seen that a ginning apparatus is providedwhich is adapted to effectually and economically remove the lint fromthe cotton seed without the use of saws or ribs.

Having described my invention, what I claim as new and desire to secureby Letters Patent is 1. A cotton gin comprising a casing having meansfor creating suction drafttherethrough, a foraminous concave located inthe casing, a cylinder journaled for rotation within the concave andhaving spaced doifer bars, and spaced lint confining bars arranged formovement upon the exterior and in contact with the exterior of the saidforaminous concave.

2. A cotton gin comprising a casing having an inlet and outlet and meansfor creating suction draft therethrough, a foraminous concave located inthe casing, a cylinder journaled for rotation within the concave andhaving spaced dofi'er bars, endless chains mounted for orbital movementbehind the cylinder, lint confining bars attached to said chains andcorresponding in number with the doffer bars upon the cylinder andarranged to move along and in contact with the exterior of the concave.

3. A cotton gin comprising a casing having an inlet and an outlet andmeans for creating a draft therethrough, a foraminous concave located inthe casing, a cylinder journaled for rotation in the concave and havingspaced peripheral dofi'er bars, a series of lint confining bars arrangedfor movement along the exterior of the concave, said lint confining barscorresponding in number with the doffer bars upon the cylinder andarranged to move slightly in advance of the doffer bars.

4. A cotton gin comprising a casing having an inlet and an outlet andmeans for creating a draft therethrough, a foraminous concave located inthe casing, a cylinder journaled for rotation in the concave and havinga series of spaced peripheral dofi'er bars adapted to move cotton seedalong the concave, chains mounted for orbital movement behind theconcave, lint confining bars connected at their ends with said chainsand spaced from each other, said lint confining bars corresponding innumber with the dofi'er bars upon the cylinder and arranged to moveslightly in advance of the said dolfcr bars.

In testimony that I claim the foregoing as my own, I have hereto afiixedmy signature 20 in the presence of two witnesses.

WILLIAM B. TURMAN.

Witnesses JAMES T. SA'r'riRFInLD, MoLLIn CENTER.

